公开(公告)号：US10344140B2

公开(公告)日：2019-07-09

申请号：US15534146

申请日：2015-12-10

Applicant: Pacific Industrial Development Corporation

Inventor： David Shepard ,  Nicholas Goodman ,  Jeffery Lachapelle ,  John Novak ,  Wei Wu

IPC: C08K3/22 ,  C08K3/016 ,  C01F7/44

Abstract: A crystalline Boehmite product and a method of forming said product is provided in which the crystalline Boehmite exhibits an average particle size (d50) that is less than 7,000 nanometers. This method comprises preparing an aqueous slurry by mixing together water, large aluminum oxide precursors, a highly dispersible Boehmite grade, and optionally, an organic dispersing agent; adjusting the pH of the slurry; heating the slurry for a predetermined duration of time; collecting the slurry to form a wet cake; and drying the wet cake to obtain the crystalline Boehmite product. The crystalline Boehmite product may be mixed with a plastic resin to form a flame retardant plastic mixture, which can be subjected to a conventional plastic processing method to form a flame retardant composite.

公开(公告)号：US20180346685A1

公开(公告)日：2018-12-06

申请号：US15534146

申请日：2015-12-10

Applicant: Pacific Industrial Development Corporation

Inventor： David Shepard ,  Nick Goodman ,  Jeffrey Lachapelle ,  John Novak ,  Wei Wu

IPC: C08K3/22 ,  C01F7/44

CPC classification number: C08K3/22 ,  C01F7/447 ,  C01F7/448 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  C08K3/016 ,  C08K2003/2227

Abstract: A crystalline Boehmite product and a method of forming said product is provided in which the crystalline Boehmite exhibits an average particle size (d50) that is less than 7,000 nanometers. This method comprises preparing an aqueous slurry by mixing together water, large aluminum oxide precursors, a highly dispersible Boehmite grade, and optionally, an organic dispersing agent; adjusting the pH of the slurry; heating the slurry for a predetermined duration of time; collecting the slurry to form a wet cake; and drying the wet cake to obtain the crystalline Boehmite product. The crystalline Boehmite product may be mixed with a plastic resin to form a flame retardant plastic mixture, which can be subjected to a conventional plastic processing method to form a flame retardant composite.